# Copyright (c) 2005-2007 The Regents of The University of Michigan
# Copyright (c) 2011 Regents of the University of California
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# Authors: Nathan Binkert
#          Rick Strong

from m5.SimObject import SimObject
from m5.defines import buildEnv
from m5.params import *
from m5.proxy import *

from PhysicalMemory import *

class MemoryMode(Enum): vals = ['invalid', 'atomic', 'timing']

class System(SimObject):
    type = 'System'

    @classmethod
    def export_method_cxx_predecls(cls, code):
        code('#include "sim/system.hh"')

    @classmethod
    def export_methods(cls, code):
        code('''
      Enums::MemoryMode getMemoryMode();
      void setMemoryMode(Enums::MemoryMode mode);
''')

    physmem = Param.PhysicalMemory("Physical Memory")
    mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in")
    memories = VectorParam.PhysicalMemory(Self.all, "All memories is the system")

    work_item_id = Param.Int(-1, "specific work item id")
    work_begin_cpu_id_exit = Param.Int(-1,
        "work started on specific id, now exit simulation")
    work_begin_ckpt_count = Param.Counter(0,
        "create checkpoint when work items begin count value is reached")
    work_begin_exit_count = Param.Counter(0,
        "exit simulation when work items begin count value is reached")
    work_end_ckpt_count = Param.Counter(0,
        "create checkpoint when work items end count value is reached")
    work_end_exit_count = Param.Counter(0,
        "exit simulation when work items end count value is reached")
    work_cpus_ckpt_count = Param.Counter(0,
        "create checkpoint when active cpu count value is reached")

    if buildEnv['FULL_SYSTEM']:
        abstract = True
        boot_cpu_frequency = Param.Frequency(Self.cpu[0].clock.frequency,
                                             "boot processor frequency")
        init_param = Param.UInt64(0, "numerical value to pass into simulator")
        boot_osflags = Param.String("a", "boot flags to pass to the kernel")
        kernel = Param.String("", "file that contains the kernel code")
        readfile = Param.String("", "file to read startup script from")
        symbolfile = Param.String("", "file to get the symbols from")
        load_addr_mask = Param.UInt64(0xffffffffff,
                "Address to mask loading binaries with");
